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<h2><a name="_Toc368632610">Overview</a></h2>
<p class="MsoNormal">Advanced Virtual Microscope (AVM) is an image annotation 
and analysis platform for working with gigapixel images.<span style="mso-spacerun:yes">&nbsp;
</span>It allows users to generate annotations on small or very large images 
which are uploaded and stored on a remote server for collaboration or 
authentication. Feature generators are provided and can be use to train and test 
classifiers, or their values <span style="mso-spacerun:yes">&nbsp;</span>can be 
displayed for testing how different features distinguish various image sections. 
Custom plug-ins for feature generation or classification are supported for 
development. </p>
<p class="MsoNormal">The AVM system has 3 major components; Java web services, a 
database, and a client application. <span style="mso-spacerun:yes">&nbsp;</span>The 
web services are designed to run on Glassfish servers and provide CRUD 
interfaces between client applications and a NoSQL database.<span style="mso-spacerun:yes">&nbsp;
</span>The server can also perform computationally intensive operations for the 
client application. It also hosts the client application for download and 
execution on the client’s machine.<span style="mso-spacerun:yes">&nbsp; </span>
The client application’s primary function is to allow users to rapidly interact 
with very large images.<span style="mso-spacerun:yes">&nbsp; </span>The database 
manages these images in a Flashpix style format where large images are stored in 
small individual compressed tiles at several different resolutions. When clients 
are viewing images only the small sub regions required for display on a users 
monitor are downloaded.<span style="mso-spacerun:yes">&nbsp; </span>Image 
annotations and other data are also stored in the database and are accessed as 
needed by the client. </p>
<p class="MsoNormal">note: right click context menus are used through AVM for additional options</p>

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